/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.flowable.common.engine.impl.calendar;

import java.util.Date;

import org.flowable.common.engine.api.FlowableException;
import org.flowable.common.engine.impl.runtime.ClockReader;
import org.joda.time.DateTime;
import org.joda.time.Period;

public class DueDateBusinessCalendar extends BusinessCalendarImpl {

    public static final String NAME = "dueDate";

    public DueDateBusinessCalendar(ClockReader clockReader) {
        super(clockReader);
    }

    @Override
    public Date resolveDuedate(String duedate, int maxIterations) {
        try {
            // check if due period was specified
            if (duedate.startsWith("P")) {
                return new DateTime(clockReader.getCurrentTime()).plus(Period.parse(duedate)).toDate();
            }

            return DateTime.parse(duedate).toDate();

        } catch (Exception e) {
            throw new FlowableException("couldn't resolve duedate: " + e.getMessage(), e);
        }
    }
}
